Which of the following is NOT one of the main serotypes of EKC?

Which of the following is NOT one of the main serotypes of EKC?

• A. 8
• B. 9
• C. 17
• D. 37

Answer: (C)

Epidemic keratoconjunctivitis (EKC) is driven by a specific group of adenovirus serotypes that are most commonly linked to outbreaks. The serotypes most consistently associated with EKC are eight, nineteen, and thirty-seven. Any serotype outside that core trio isn’t considered one of the main EKC serotypes, so a serotype like seventeen falls into that non‑main category. This distinction helps explain why seventeen is not treated as one of the primary EKC culprits, even though other serotypes can cause conjunctival disease.

Epidemic keratoconjunctivitis (EKC) is driven by a specific group of adenovirus serotypes that are most commonly linked to outbreaks. The serotypes most consistently associated with EKC are eight, nineteen, and thirty-seven. Any serotype outside that core trio isn’t considered one of the main EKC serotypes, so a serotype like seventeen falls into that non‑main category. This distinction helps explain why seventeen is not treated as one of the primary EKC culprits, even though other serotypes can cause conjunctival disease.